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annotate src/video/xbios/SDL_xbios_blowup.c @ 1157:baf35853ad54

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Date: Mon, 10 Oct 2005 13:09:32 +0300 From: Tommi Kyntola <tommi.kyntola@ray.fi> To: sdl@libsdl.org Subject: [SDL] [RFC] get_ticks broken on linux It uses gettimeofday to calculate the timedifference. Gettimeofday returns current time which is seldom monotonous. This breaks SDL timer subsystem. (time callbacks and all that get borked when the time difference ms is suddenly ~ 2^32) I posted a message about this earlier but got no response. Some thoughts on this matter would be appreciated. (Or even an explanation for the lack of interest.) A patch below would use the posix timers that have been around since posix 93 and do provide a good source of monotonous time on linux boxes (and on few others too). The following patch is also availabe at: http://www.hut.fi/u/tkyntola/SDL-1.2.9-clockfix.patch It's against 1.2.9, but I can easily rediffit against the cvs branch is needed. cheers, Tommi Kyntola tommi.kyntola@ray.fi
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 11 Oct 2005 18:16:12 +0000
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 /*
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24 Blowup extension definitions
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25
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26 Patrice Mandin
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27 */
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28
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29 #include <mint/falcon.h>
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30
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31 #include "SDL_xbios.h"
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32 #include "SDL_xbios_blowup.h"
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33
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34 void SDL_XBIOS_BlowupInit(_THIS, blow_cookie_t *cookie_blow)
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35 {
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36 int i, num_mode, bank;
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37 blow_mode_t *blow_mode;
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38
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39 /* Add bit 15 for old modes */
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40 for (i=0;i<XBIOS_nummodes;i++) {
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41 XBIOS_modelist[i].number |= 1<<15;
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42 }
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43
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44 /* Add Blowup modes for 8 and 16 bpp */
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45 for (num_mode=3; num_mode<5; num_mode++) {
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46 bank = cookie_blow->num_mode[num_mode];
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47 blow_mode = &(cookie_blow->blowup_modes[num_mode+(bank*5)]);
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48
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49 /* Check extended mode enabled */
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50 if (blow_mode->enabled == 0) {
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51 /* Check monitor needed for this mode */
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52 if ((blow_mode->monitor == cookie_blow->montype)
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53 || ((blow_mode->monitor == MONITOR_TV)
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54 && (cookie_blow->montype == MONITOR_RGB))
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55 || ((blow_mode->monitor == MONITOR_RGB)
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56 && (cookie_blow->montype == MONITOR_TV)))
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57 {
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58 /* we can use this extended mode */
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59 SDL_XBIOS_AddMode(this,
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60 num_mode == 3 ? BPS8 : BPS16,
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61 blow_mode->width + 1,
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62 blow_mode->height + 1,
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63 num_mode == 3 ? 8 : 16,
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64 SDL_FALSE
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65 );
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66 }
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67 }
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68 }
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69 }